Bis logo

Brand-new Idol Society

Fanbase Name

Kenkyuuin (研究員; "Researchers")

Years Active





Tsubasa Records (2010 - 2012, 2016 - 2017)
Avex Trax (2012 - 2014)
Nippon Crown (2018 - 2019)

Associated Acts

BiS Kaidan, BiSH, GANG PARADE, Maison book girl, LUI FRONTiC Akabane JAPAN, BILLIE IDLE®, CY8ER, Morphine Tokyo, the End, Akishibu Project, SAiNT SEX, EMPiRE, De☆Ful, Naturallium.vivid, Attain Music, Kimi no Mawari., HOLY SHiTS, meme tokyo, ARCANA PROJECT, EMPiRE


Official Website


Itou Musensiteebu
Neo Trees

Former Members

Pour Lui
Hirano Nozomi
Yokoyama Rina
Nakayama Yukiko
Terashima Yufu
Wakisaka Yurika
Michibayashi Rio
First Summer Uika
Kamiya Saki
Koshouji Megumi
Nel Nehru
Aya Eightprince
Toriaez Hana
Kika Front Frontale
Peri Ubu
Go Zeela
Pan Luna Leafy
Manako Chiii Manako
Zuzu Death

BiS, also known as Brand-new idol Society (Shinsei Idol Kenkyuukai, 新生アイドル研究会), is a Japanese idol group founded in 2010 by Pour Lui.

They are considered the flagship group of WACK, and have since had multiple reboots.

There are currently three incarnations of BiS:

  • The first generation (known as "Original BiS"), was active from late 2010 and disbanded on July 8th, 2014.
  • The third generation is the current lineup of BiS, and was revealed exactly one month after the disbandment of second-generation BiS.

Members Edit

Past Members Edit

1st Generation Edit

2nd Generation Edit

3rd Generation Edit

Other Members Edit

  • Koshino Junko (コシノジュンコ) Was made an honorary life member of BiS on 4 November 2013
  • Youko (ようこ) Won an internet auction to become a member of BiS for one day.
  • "Gamiya Saki" (ガミヤサキ) Was announced as a member of BiS 1st in March 2018, but withdrew two days later.
  • Okuda Minami (オクダミナミ) Is credited as a member in the My Ixxx liner notes, however, never actually debuted, or even revealed her face. She was probably a member who withdrew before any announcement of her joining was made.

History Edit

First Generation Edit

BiS was initially founded on December 9th, 2010. The very first members were Pour Lui, Nakayama Yukiko, Yokoyama Rina and Hirano Nozomi. Their first album, Brand-new idol Society, was released on March 23rd 2011.

On June 24th 2011, Yokoyama Rina withdrew from BiS and was replaced by Terashima Yufu. BiS' debut single, My Ixxx, was released on August 3rd 2011.

On December 30th 2011, Nakayama Yukiko graduated from BiS.

On April 11th 2012, BiS released their last indie single, IDOL. Prior to the single's release, BiS pranked the fans by pretending to rebrand as a traditional idol group. Shortly after IDOL's release, BiS signed to major label Avex Trax and two more members, Michibayashi Rio and Wakisaka Yurika, were added to the group. Their major debut single was PPCC.

In October 2012, BiS released their second album, IDOL is DEAD, and also starred in a horror film of the same name.

Wakisaka Yurika graduated from BiS on March 16th, 2013. Terashima Yufu also withdrew on May 26th and was replaced by First Summer Uika, Tentenko Kamiya Saki.

Michibayashi Rio graduated from BiS on September 22nd, 2013, and Koshouji Megumi joined two months later.

In February 2014, BiS announced their disbandment. They released their final studio album, WHO KiLLED IDOL? in March and their final single, FiNAL DANCE / nerve in April. They eventually disbanded at Yokohama Arena on July 8th, 2014.

Second Generation Edit

Exactly two years after BiS disbanded, Pour Lui announced that she would be reforming the group with new members. Through late August to early September, a live-streamed audition boot camp for new members was held, resulting in Go Zeela, Kika Front Frontale, Aya Eightprince and Peri Ubu joining the group. Their debut album, Brand-new idol Society 2, was released in November.

In March 2017, Pan Luna Leafy and Momoland joined BiS. First generation member Kamiya Saki also rejoined the group, as part of a temporary trade with Aya Eightprince, who had been transferred to her current group, GANG PARADE. They released their first single, SOCiALiSM, on May 31st.

On March 4th 2018, first-generation members Pour Lui and Kamiya Saki left the group, and Aya Eightprince rejoined. A few weeks later, Muropanako, Nel Nehru, Toriaez Hana, Mewclub and YUiNA EMPiRE joined, and BiS was split into two groups, BiS 1st, and BiS 2nd.

Momoland withdrew from BiS on April 20th, and the same day, a competitive system, BiS.LEAGUE, was introduced; In votes given by fans, the highest-ranking members of BiS would be transferred to BiS 1st, and low-ranking members to BiS 2nd. This system continued until the end of 2018, when BiS was united into a single group again. However, Aya Eightprince, Toriaez Hana, Nel Nehru, Muropanako and YUiNA EMPiRE were threatened with removal from the group due to their poor BiS.LEAGUE rankings. Nel Nehru left BiS just a few days later.

In March 2019, the remaining probation members took part in the WACK AUDiTiON CAMP 2019, under the condition that anyone who was eliminated from the audition would also be fired, resulting in the removals of Aya Eightprince and Toriaez Hana. In response, the remaining members of BiS announced their graduations, and BiS disbanded for a second time on May 1th, 2019.

Third Generation Edit

On March 30th 2019, at the same time that the second generation announced their disbandment, Watanabe Junnosuke announced that he would be holding closed auditions for a third generation of BiS.

The starting lineup was revealed exactly one month after the second generation's disbandment, and was made up of Manako Chiii ManakoChantmonkeeNeo TreesToggy and Itou Musensiteebu. They officially debuted at Tokyo Idol Festival on August 4th, 2019. The group's first release was the album Brand-new idol Society, named after the debut album of BiS' first-generation.

On August 13th, Manako Chiii Manako suddenly withdrew from BiS. She was later replaced by Zuzudeath, who also withdrew just a week after her reveal. At the end of 2019, BiS' third generation released their first single, DEAD or A LiME. It was followed by their second album, LOOKiE, (alongside a re-recorded version of Brand-new idol Society (2019)) in early 2020.

Discography Edit

Publications Edit

Other Media Edit

Live Video Edit

Film Edit

Television Edit

Other Video Edit

Radio Edit

  • [2013.01.06-2014.07.05] BiS no Vision? (ビスのビッスン?)
  • [2018.07.18-2019.03.20] BiS no Honne or DIE (BiSの本音 or DIE; BiS' True Intentions or DIE)
  • [2019.09.17] BiS no PARK LiFE

Trivia Edit

  • BiS are often credited with helping to initiate the mid-2010s alt-idol boom.
  • Not to be confused with the British rock band bis or the visual-kei group BIS (Believe In Style)
  • Are the only WACK unit to have their own series of movies and anime.
  • Part of Pour Lui's motivation to reform BiS was out of jealousy over how their successors BiSH had become much more famous.
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